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A GML-based multi-source and heterogeneous spatial data integration framework

CHEN Chuan-bin①,WU Qun-yong ①②,CHEN Chong-cheng①(①Spatial Information Research Center of Fujian province,Key Lab for Data Mining and Information Sharing of Ministry of Education,Fuzhou University,Fuzhou Fujian 350002,China;②LREIS,Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China)  
With the rapid development of computer and internet technology,the application of geographic information comes into age of internet gradually.People can easily get geographic information from internet.However,geographic information are multi-source,complex and incompatible.It is difficult to use them directly.GML and spatial data integration technology can be used to solve the problem in the network environment so that inter-operation of heterogeneous spatial data can be implemeted.Based on the analysis of data format and geometry elements of GML,and the framework introduced by GioWiederhold in 1991,a GML-based multi-source and heterogeneous spatial data integration framework was developed in a J2EE environment.Taking E00 and SHP as example,the spatial data specification of E00 and the GML-E00 conversion,are discussed.Finally,the data integration is validated taking Fujian Major Highway Database as a sample database and the interface of data is offered.The result indicates that GML for multi-source and heterogeneous spatial dataintegration is effective.
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